| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not difficult [verb] that | 20 |
|
| 2 | [be] not difficult [verb] that | 20 |
|
| 3 | [is] not difficult [verb] that | 16 |
|
| 4 | is not difficult [verb] that | 15 |
|
| 5 | not difficult [verb] that [pron] | 6 |
|
| 6 | not difficult [verb] that [art] | 5 |
|
| 7 | not difficult [verb] that [art] | 5 |
|
